package io;

import java.io.*;

/**
 * 在流连接中使用PW
 */
public class PWDemo2 {
    public static void main(String[] args) throws FileNotFoundException, UnsupportedEncodingException {
        //文件流(低级流)，负责向文件中写入字节
        FileOutputStream fos = new FileOutputStream("pw2.txt",true);
        //转换流(高级流)，负责衔接字符与字节流，将写出的字符转换为字节
        OutputStreamWriter osw = new OutputStreamWriter(fos,"UTF-8");
        //缓冲流(高级流),负责块写文本数据加速
        BufferedWriter bw = new BufferedWriter(osw);
        //pw(高级流)按行写出字符串，自动刷新
        PrintWriter pw = new PrintWriter(bw);

        pw.println("你好！");
        pw.println("再见！");

        System.out.println("写出完毕");
        pw.close();
    }
}
